Briggs & Stratton Vanguard Twin Cylinder OHV Liquid-Cooled Engines Repair Manual - PDF DOWNLOAD

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VanguardTM Twin-Cylinder OHV Liquid-Cooled Engine Section 6 - Final Adjustments & Specifications

4. Tighten casing clamp screw.

CARBURETOR ADJUSTMENT The VanguardE liquid cooled OHV Twin cylinder carburetor fuel mixture adjustment procedure is unique. Perform adjustments exactly in the sequence shown. Initial Adjustment 1. Turn idle mixture screw for #1 cylinder clockwise until it just seats. DO NOT FORCE. 2. Then turn screw counter-clockwise 3/4 turn, Fig 186. 3. Repeat for #2 cylinder. This setting will permit engine to start. Final adjustment will be made with engine running.

Fig. 184 Choke Control Adjustment 1. Place choke control lever on equipment in CHOKE position. 2. Loosen control casing clamp screw. 3. Move control casing and wire until choke is completely closed, Fig. 185. 4. Tighten casing clamp screw.

Fig. 186 CAUTION: Failure to follow these instructions may result in bearing seizure 1. When engine has been reassembled after any major repairs, fill engine with a multi-viscosity oil to the recommended level. 2. Then run engine for 5 minutes under NO belt tension.

Fig. 185

3. Then adjust belt tension to OEM specifications. Final Adjustment

IMPORTANT: Idle mixture adjustment must be performed with the engine running at 1200 rpm.

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